Tractinsky, N., Katz, A.S. and Ikar, D. (2000) What is beautiful is usable. Interacting with Computers, Vol. 13, No 2, pp. 127-145.
Several studies have been made to assess the relationship between the beauty or aesthetics of a product and its perceived usability. The studies of Tractinsky et al. were among the first ones, and they inspired many others to similar or modified studies, since the results indicated strong correlations between perceived beauty and perceived usability both before experiencing with the product and afterwards. The aesthetics affected in post-test ratings of both perceived aesthetics and perceived usability, whereas actual usability had no effect on them.